B型喇叭式立交环圈出口匝道运行速度过渡段长度研究
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摘要
为确定车辆在B型喇叭式立交环圈出口匝道满足安全行驶需求的运行速度过渡段最小长度,分别建立了满足超高过渡需求、车辆变速行驶需求、横向加速度变化率适中等要求下的运行速度过渡段长度计算模型。采用UMRR开普勒链式雷达测速仪,实测不同主线设计速度下环圈出口分流鼻运行速度,结合SPSS软件分析,得到分流鼻运行速度。基于运行速度过渡段长度计算模型和典型参数的分析论证,得到满足不同需求的运行速度过渡段最小长度。结果表明:车辆变速行驶需求是B型喇叭式立交环圈出口匝道运行速度过渡段长度的主要控制因素;并基于满足车辆安全行驶需求,提出了运行速度过渡段长度最小建议值及纵坡修正系数。
In order to determine the minimum lengths of the operating speed transition section which meet the safe driving demand of vehicles at ring off-ramp of B-type trumpet interchange,the calculation models of the operating speed transition section length were set up respectively to meet the requirements of ultra-high transition,speed-changing driving and moderate lateral acceleration change rate. Through UMRR Kepler chain radar tachometer,the operating speeds at the diverging gore nose of the ring off-ramp were measured under different main line design speeds,and with SPSS software,the operating speed representative values at the diverging gore nose were obtained.Based on the length calculation models of the operating speed transition section and the analysis of the typical parameters,the minimum lengths of the operating speed transition section were obtained to meet different requirements. The results show that vehicle variable speed driving demand is the main control factor for the length of the transition section at the ring off-ramp of B-type trumpet interchange; and based on the safe driving demand of the vehicles,the minimum recommended values where proposed,as well as the correction coefficients of longitudinal slopes.
In order to determine the minimum lengths of the operating speed transition section which meet the safe driving demand of vehicles at ring off-ramp of B-type trumpet interchange,the calculation models of the operating speed transition section length were set up respectively to meet the requirements of ultra-high transition,speed-changing driving and moderate lateral acceleration change rate. Through UMRR Kepler chain radar tachometer,the operating speeds at the diverging gore nose of the ring off-ramp were measured under different main line design speeds,and with SPSS software,the operating speed representative values at the diverging gore nose were obtained.Based on the length calculation models of the operating speed transition section and the analysis of the typical parameters,the minimum lengths of the operating speed transition section were obtained to meet different requirements. The results show that vehicle variable speed driving demand is the main control factor for the length of the transition section at the ring off-ramp of B-type trumpet interchange; and based on the safe driving demand of the vehicles,the minimum recommended values where proposed,as well as the correction coefficients of longitudinal slopes.
引文
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[12]杨少伟,许金良,杨宏志.考虑平、纵、横三方面关系的横向加速度变化率[J].中国公路学报,1999,12(4):12-16.YANG Shaowei,XU Jinliang,YANG Hongzhi.Lateral change of acceleration according to the relationship of the horizontal,vertical and lateral geometry of highway[J].China Journal of Highway and Transport,1999,12(4):12-16.
[13]林涛.山区公路曲线段车辆加速度及轨迹研究[D].上海:同济大学,2008:60-61.LIN Tao.Vertical Acceleration and Driving Track Research of Sharp Curves in Mountainous Highway[D].Shanghai:Tongji University,2008:60-61.
[14]张驰,华贵龙,张敏.考虑大货车横向稳定性的平曲线设计控制指标[J].重庆交通大学学报(自然科学版),2015,34(3):36-41.ZHANG Chi,HUA Guilong,ZHANG Min.Control index of horizontalcurve design considering truck's lateral stability[J].Journal of Chongqing Jiaotong University(Natural Science),2015,34(3):36-41.
[2]American Association of State Highway and Transportation Officials(AASHTO).A Policy on Geometric Design of Highways and Streets[M].6th ed.Washington,D C:American Association of State Highway and Transportation Officials,2011:114-116.
[3]LIU Benmin,KONG Lingzong.Model of deceleration lane length calculation based on quadratic deceleration[C]//Access Management Theories and Practices.U.S.A.:ASCE,2015:180-189.
[4]崔志伟,孙家驷,高辰生.互通式立交减速车道及分流点的探讨[J].重庆交通大学学报(自然科学版),2007,26(增刊1):82-85.CUI Zhiwei,SUN Jiasi,GAO Chensheng.Discussions on deceleration lanes and diversion point of interchange[J].Journal of Chongqing Jiaotong University(Natural Science),2007,26(Sup1):82-85.
[5]张驰,闫晓敏,李小伟,等.互通式立交单车道出口小客车运行速度模型[J].中国公路学报,2017,30(6):279-286.ZHANG Chi,YAN Xiaomin,LI Xiaowei,et al.Operating speed model of passenger car at single-lane exit of interchange[J].China Journal of Highway and Transport,2017,30(6):279-286.
[6]姜迪,罗鹏程,燕凌.B型喇叭立体交叉的设计探讨[J].价值工程,2010,29(24):49-49.JIANG Di,LUO Pengcheng,YAN Ling.Exploration on fly-over crossing of B-type trumpet[J].Value Engineering,2010,29(24):49-49.
[7]刘建蓓,郭腾峰,王佐.公路运行速度过渡段设计方法研究[J].公路,2011(4):109-113.LIU Jianbei,GUO Tengfeng,WANG Zuo.Astudy on design method for operating speed transition section of highway[J].Highway,2011(4):109-113.
[8]中国公路工程咨询集团有限公司.公路立体交叉设计细则:JTG/T D21-2014[S].北京:人民交通出版社,2014:50-51.China Highway Engineering Consultants Corporation.Guideline for Design of Highway Grade-separated Intersection:JTG/T D21-2014[S].Beijing:China Communications Press,2014:50-51.
[9]日本道路公团.日本高速公路设计要领[M].交通部工程管理司译制组,译.西安:陕西旅游出版社,1991:230-232.Japan Highway Public Corporation.Essentials of Japan Expressway Design[M].Translation Group of Engineering Management Department of Ministry of Transport,Translate.Xi'an:Shaanxi Tourism Press,1991:230-232.
[10]赵晓翠,杨峰,赵妮娜.高速公路互通立交分流区的驾驶行为[J].公路交通科技,2012,29(9):143-145.ZHAO Xiaocui,YANG Feng,ZHAO Nina.Driving behavior in diverging area of expressway interchange[J].Journal of Highway and Transportation Research and Development,2012,29(9):143-145.
[11]孔令臣.多车道高速公路互通式立交加减速车道长度及最小净距研究[D].西安:长安大学,2012:49-50.KONG Lingchen.Research on the Length of Speed-changing Lane and Minimum Net Distance between Interchange on Multi-lane Expressway[D].Xi'an:Chang'an University,2012:49-50.
[12]杨少伟,许金良,杨宏志.考虑平、纵、横三方面关系的横向加速度变化率[J].中国公路学报,1999,12(4):12-16.YANG Shaowei,XU Jinliang,YANG Hongzhi.Lateral change of acceleration according to the relationship of the horizontal,vertical and lateral geometry of highway[J].China Journal of Highway and Transport,1999,12(4):12-16.
[13]林涛.山区公路曲线段车辆加速度及轨迹研究[D].上海:同济大学,2008:60-61.LIN Tao.Vertical Acceleration and Driving Track Research of Sharp Curves in Mountainous Highway[D].Shanghai:Tongji University,2008:60-61.
[14]张驰,华贵龙,张敏.考虑大货车横向稳定性的平曲线设计控制指标[J].重庆交通大学学报(自然科学版),2015,34(3):36-41.ZHANG Chi,HUA Guilong,ZHANG Min.Control index of horizontalcurve design considering truck's lateral stability[J].Journal of Chongqing Jiaotong University(Natural Science),2015,34(3):36-41.